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公开(公告)号：US1499073A
公开(公告)日：1924-06-24
申请号：US32169619
申请日：1919-09-04
Applicant: ALUMINUM CO OF AMERICA
Inventor： HENRY POMEROY LAURENCE
IPC: F02F3/02
CPC classification number: F02F3/027 , F05C2201/021
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